- The UK government is scheduled to conduct a national test of its emergency alert system.
- Millions of mobile phones on 4G and 5G networks across the UK will receive the alert at approximately 3pm on September 7.
- The alert will cause phones to vibrate and emit a siren for around 10 seconds, delivering a message in both English and Welsh.
- The message will state that it is a test and recipients do not need to take any action, directing them to gov.uk for further information.
- Designed to warn of life-threatening emergencies, the system has been activated five times since April 2023 for events including severe storms and unexploded ordnance.
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